Chase Bank issues the United and Continental mileage credit cards. As such they do not allow their respective affinity airlines to accept the transfer of Starwood points at 20,000 starpoints=25,000 miles like you can do on over 30 other airlines.
The reason is simple, who in their right minds would use an $85 Continental credit card to earn less Continental miles per dollar spent than you can earn using a $45 (and free for first year) Starwood card.
There is a workaround, but it is not a good one.
You can set up your Starwood account to automatically transfer your Starpoints into an airline at a 1:1 basis.
This works even for airlines such as United and Continental!
Mind you, there are so many better uses for Starpoints that doing this i almost criminal-but enough people ask about the Continental transfer that it’s worth the mention…